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Unformatted text preview: = 5.28 V
9. ? . Thus, An engineer measures finds that with an input voltage
, the output voltage is
, so that the gain of the amplifier is 6. However, op-amp theory suggests the
. Give one phrase that could explain the difference. Slew-rate
10. The output voltage of a three-terminal voltage regulator is 5 V @ 5 mA load, and 4.96 V @
1.5 A load. What is the regulator’s output resistance?
Answer. ⁄ ⁄ 2 55:041 Electronic Circuits. The University of Iowa. Fall 2011. 11. Below are the characteristics for a MOSFET. What type of FET is this (circle one)?
(a) Enhancement PMOS (b) Enhancement NMOS (c) Depletion NMOS Answer: Depletion NMOS => (b)
12. Below as possible ordering for
(d) ( ( (
( for several LEDs. Circle the correct one.
( ( ( (
( ( Answer: (a) 13. True or false: in MOSFETs the drain current is directly proportional to the width-to-length
ratio. Answer: True 14. Briefly explain (1–2 sentences) what is ( as it pertains to MOSFETs. (2 points) This is the lower channel resistance that one can achieve when turning on a MOSFET.
That’s is, the resistance between drain and source when
(for an NMOSFET). 3 55:041 Electronic Circuits. The University of Iowa. Fall 2011. 15. True or false: given the symmetrical construction of MOSFETs one can, in principle, at
least, interchange the drain and the source terminals without affecting device behavior.
Answer: True 16. Below is a...
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This note was uploaded on 10/26/2013 for the course ECE 55:041 taught by Professor Kruger during the Fall '11 term at University of Iowa.
- Fall '11